Home / 145,523.64-218,398.59-66,642.33

Finding the Fourth Proportional to 145,523.64, 218,398.59 and 66,642.33

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Solution

The fourth proportional to 145,523.64, 218,398.59 and 66,642.33 is: 100,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,523.64 : 218,398.59 = 66,642.33 : x
  2. Step 2: Convert to fraction form
    145,523.64/218,398.59 = 66,642.33/x
  3. Step 3: Cross multiply
    145,523.64x = 218,398.59 × 66,642.33
  4. Step 4: Simplify right side
    145,523.64x = 14,554,590,906.31
  5. Step 5: Solve for x
    x = 14,554,590,906.31/145,523.64
  6. Step 6: Final answer
    x = 100,015.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.